I'm no help on any of your questions, but...
If your close to the north bay and need a set of springs to use or borrow for the setup, I have a few here. They are not the 002-003's They are the 3400-3600lb B and E body springs. One pair is Mopar performance and the other is Mancini "pro/stocks" The rear segmant of the spring is 1" longer than the A-body springs. I'm doing the Caltrac monoleaf thing now, so these are no longer needed. -Tom.